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Seilern Investment Management

Seilern

CIK 0001817797 ↗ ⓘCIK: The SEC's ID number for a filer (Central Index Key). Every manager, company and fund has one; it is the surest way to find all of someone's filings on EDGAR, even when names change or are spelled differently. Guide View this SEC filing ↗ All SEC filings ↗ Filed Jul 8, 2026
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In plain English: this page lists every stock Seilern's fund told the SEC it owned at the end of the quarter, biggest first, and what changed since the quarter before — "New" means they bought it for the first time, "Sold" means they sold all of it. The list is at least 6 weeks old, and it is only part of their investments (no cash, bonds or bets against stocks).

Educational and informational only, not personalized investment advice. Based on public filings that may be delayed or contain errors; verify with the original filings. Disclaimer

Biggest moves · Q2 2026 -$50.33M UNH-$31.52M WST+$27.73M CPRT-$22.89M GOOGL
Reported value ⓘTotal of long stock positions in this 13F. Options are listed separately and not included.
$793.82M
Q2 2026
Quarter change
-5.3%
vs Q1 2026 ($838.49M)
Holdings
24
Top-10 weight 69.2%
Activity
0 new · 0 sold out
8 added to · 16 trimmed

Investing style at a glance · Q2 2026

Worked out from this 13F only (long stock positions). ⓘConcentration: The share of a portfolio in its 10 largest positions. High = a few big bets; low = spread out. Guide ⓘTurnover: How many positions were opened or closed this quarter compared with the number held. Guide

Portfolio value over time

Reported 13F value per quarter (dashed = partial quarter)

Chart: Portfolio value over time

Sector allocation

Q2 2026

Chart: Sector allocation

Top holdings over time

Share of the portfolio each quarter (current top 5)

Chart: Top holdings over time

Quarter-by-quarter activity

Positions bought (new or added) vs sold (trimmed or exited)

Chart: Quarter-by-quarter activity

Insights

Adds vs. trims · Q2 2026

Largest estimated dollar adds (green) and trims (red) this quarter. Click a bar to open the stock.

Chart: adds and trims

Sector allocation over time

Share of the reported portfolio in each sector, by quarter

Chart: sector allocation over time

Performance context

Reported 13F value vs. the S&P 500 between the same quarter-end dates, and a hypothetical “copy the top 10” strategy vs. SPY. Prices through Oct 27, 2026.

Reported value change ⓘChange in total reported 13F value from Dec 31, 2024 to Sep 30, 2026. Includes deposits/withdrawals and is not the fund’s return.
-56.0%
Dec 31, 2024 – Sep 30, 2026
S&P 500, same dates
+30.1%
Price index (^GSPC)
Hypothetical top-10 ⓘBuy the reported top 10 (value-weighted) at the close of the first trading day after each filing, hold until the next filing. Covers 100% of top-10 value on average (positions with price data).
+21.4%
Jan 17, 2025 – Oct 27, 2026
SPY, same days
+31.3%
Total return (dividends included)

Read these numbers carefully: “Reported value change” is the change in the total value of the shares on this manager’s 13F — it is not the fund’s investment return. The total also moves when investors put money into the fund or take it out, and a 13F covers only long US-listed shares — no shorts, bonds, cash or foreign stocks — so the fund’s actual return can be higher or lower.

Reported value vs. S&P 500 (cumulative)

Chart: reported value vs S&P 500

Hypothetical top-10 vs. SPY (cumulative)

Chart: hypothetical top-10 vs SPY
Quarter-by-quarter numbers
QuarterReported valueValue changeS&P 500Top-10 heldTop-10SPYCoverage
Q3 2026$771.28M -2.8% +2.0% Oct 14, 2026 – Oct 27, 2026 (open) +4.4% +0.0% 100%
Q2 2026$793.82M -5.3% +14.9% Jul 9, 2026 – Oct 14, 2026 +8.7% +2.6% 100%
Q1 2026$838.49M -35.0% -4.6% Apr 8, 2026 – Jul 9, 2026 +11.0% +11.5% 100%
Q4 2025$1.29B -6.8% +2.3% Jan 12, 2026 – Apr 8, 2026 -11.9% -2.5% 100%
Q3 2025$1.38B -8.7% +7.8% Oct 15, 2025 – Jan 12, 2026 +3.9% +4.8% 100%
Q2 2025$1.52B -0.9% +10.6% Jul 8, 2025 – Oct 15, 2025 +7.5% +7.5% 100%
Q1 2025$1.53B -12.8% -4.6% Apr 15, 2025 – Jul 8, 2025 +7.5% +15.7% 100%

Not investment advice. Hypothetical, not actual results. 13F filings arrive up to 45 days after quarter end, so anyone copying them buys late; the top-10 figures start the day after each filing was published. Reported value changes include deposits and withdrawals and are not the fund's return. Costs, taxes and positions without price data are ignored. Past performance does not predict future results. How this is calculated

Holdings

CSV Excel
Column filters

Numbers accept 1.5M, 2B, 250K. Percent columns take percent (5 = 5%).

Ticker Company Sector Shares Value ↓ % of portfolio Change Δ shares Δ shares % Est. Δ value ⓘChange in shares × this quarter's price
MA Mastercard Inc (Class A) Financials 169.41K $87.01M 11.0% Reduced -8.6K -4.8% -$4.39M
UNH Unitedhealth Group Inc Health Care 160.02K $66.51M 8.4% Reduced -121.1K -43.1% -$50.33M
VEEV Veeva Systems Inc (Class A) Information Technology 317.03K $56.26M 7.1% Added +707 +0.2% +$125.47K
EW Edwards Lifesciences Corp Health Care 600.23K $54.30M 6.8% Reduced -90.0K -13.0% -$8.14M
IDXX Idexx Laboratories Inc Health Care 97.56K $51.36M 6.5% Added +16.7K +20.7% +$8.81M
TYL Tyler Technologies Inc Information Technology 173.17K $50.65M 6.4% Reduced -9.1K -5.0% -$2.66M
WST West Pharmaceutical Services Inc Health Care 138.23K $49.62M 6.3% Reduced -87.8K -38.8% -$31.52M
ISRG Intuitive Surgical Inc Health Care 115.69K $46.01M 5.8% Added +17.3K +17.6% +$6.89M
ADSK Autodesk, Inc Information Technology 227.68K $44.26M 5.6% Added +22.5K +11.0% +$4.38M
GOOGL Alphabet Inc (Class A) Communication Services 121.43K $43.39M 5.5% Reduced -64.1K -34.5% -$22.89M
MSFT Microsoft Corp Information Technology 115.13K $42.94M 5.4% Reduced -16.7K -12.7% -$6.23M
CDNS Cadence Design Systems Inc Information Technology 114.32K $42.91M 5.4% Reduced -31.4K -21.5% -$11.77M
ADBE Adobe Inc Information Technology 179.90K $36.88M 4.6% Added +2.9K +1.6% +$589.64K
ZTS Zoetis Inc (Class A) Health Care 460.01K $33.06M 4.2% Added +141.2K +44.3% +$10.15M
CPRT Copart Inc Consumer Discretionary 1.05M $29.68M 3.7% Added +983.8K +1428.9% +$27.73M
MTD Mettler Toledo International Inc Information Technology 21.06K $26.90M 3.4% Reduced -1.5K -6.6% -$1.89M
ACN Accenture plc (Class A) Industrials 163.64K $20.36M 2.6% Reduced -9.3K -5.4% -$1.16M
BKNG Booking Holdings Inc Consumer Discretionary 12.36K $2.20M 0.3% Added +11.8K +2027.0% +$2.10M
TW Tradeweb Markets Inc (Class A) Financials 19.49K $1.94M 0.2% Reduced -2.7K -12.3% -$272.07K
V Visa Inc (Class A) Financials 5.62K $1.93M 0.2% Reduced -175 -3.0% -$60.04K
ADP Automatic Data Processing Inc Information Technology 8.41K $1.88M 0.2% Reduced -2.4K -22.0% -$530.31K
MCO Moodys Corp Financials 3.63K $1.64M 0.2% Reduced -1.1K -23.3% -$499.12K
GGG Graco Inc Industrials 16.79K $1.27M 0.2% Reduced -9.5K -36.1% -$717.46K
CME Cme Group Inc Financials 3.80K $839.15K 0.1% Reduced -3.4K -47.0% -$744.20K

Sold out this quarter

CSV Excel
Column filters

Numbers accept 1.5M, 2B, 250K. Percent columns take percent (5 = 5%).

No positions were fully sold this quarter.

13F filings on record (8)
QuarterFormFiledTypeRowsLong value
Q3 202613F-HROct 13, 2026Original24$771.28MSEC ↗
Q2 202613F-HRJul 8, 2026Original24$793.82MSEC ↗
Q1 202613F-HRApr 7, 2026Original24$838.49MSEC ↗
Q4 202513F-HRJan 9, 2026Original24$1.29BSEC ↗
Q3 202513F-HROct 14, 2025Original22$1.38BSEC ↗
Q2 202513F-HRJul 7, 2025Original22$1.52BSEC ↗
Q1 202513F-HRApr 14, 2025Original23$1.53BSEC ↗
Q4 202413F-HRJan 16, 2025Original21$1.75BSEC ↗